Inmate Jerry Hawkins appeals the order the district court 1 entered following an evidentiary hearing in his 42 U.S.C. § 1983 action; nominal damages were awarded against one defendant and the claims against the remaining defendants were dismissed. The evidentiary hearing amounted to a bench trial-at which the court could determine witness credibility, and decide disputed facts-because Hawkins did not timely request a jury trial. See Hartsfield v. Colburn, 491 F.3d 394, 395-96 (8th Cir. 2007); Darst-Webbe Tenant Ass’n Bd. v. St. Louis Rous. Auth., 339 F.3d 702, 710-11 (8th Cir. 2003) (in appeal from civil bench trial, this court reviews trial court’s findings of fact for clear error and conclusions of law de novo). We find no basis, and Hawkins offers none, 2 for reversing the district court’s disposition of his claims. See Scott v. Benson, 742 F.3d 335, 339-40 (8th Cir. 2014) (discussing deliberate-indifference standard, which requires mental state akin to criminal recklessness; mere difference of opinion over course of treatment or matters of expert medical judgment does not amount to constitutional violation); see also Jackson v. Nixon, 747 F.3d 537, 543 (8th Cir. 2014) (supervisory liability under § 1983). The judgment of the district court is affirmed.